Data verification utils, not in use yet. Also added ability for lua packet to bypass the translation layer (dangerous) if a writer so desires (useful for quickly trying packet stuff)

common/data_verification.h

@@ -0,0 +1,43 @@
+/*	EQEMu: Everquest Server Emulator
+	Copyright (C) 2001-2014 EQEMu Development Team (http://eqemulator.net)
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; version 2 of the License.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY except by those people which sell it, which
+	are required to give you total support for your newly bought product;
+	without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+	A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License
+	along with this program; if not, write to the Free Software
+	Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+*/
+#ifndef COMMON_DATA_VERIFICATION_H
+#define COMMON_DATA_VERIFICATION_H
+
+#include <algorithm>
+
+namespace EQEmu
+{
+
+template <typename T>
+T Clamp(const T& value, const T& lower, const T& upper) {
+	return std::max(lower, std::min(value, upper));
+}
+
+template <typename T>
+T ClampLower(const T& value, const T& lower) {
+	return std::max(lower, value);
+}
+
+template <typename T>
+T ClampUpper(const T& value, const T& upper) {
+	return std::min(value, upper);
+}
+
+}
+
+#endif

common/eq_packet.h

@@ -97,16 +97,15 @@ protected:
 };
 
 class EQApplicationPacket : public EQPacket {
-//	friend class EQProtocolPacket;
 	friend class EQStream;
 public:
-	EQApplicationPacket() : EQPacket(OP_Unknown,nullptr,0)
+	EQApplicationPacket() : EQPacket(OP_Unknown, nullptr, 0), opcode_bypass(0)
 		{ app_opcode_size = GetExecutablePlatform() == ExePlatformUCS ? 1 : 2; }
-	EQApplicationPacket(const EmuOpcode op) : EQPacket(op,nullptr,0)
+	EQApplicationPacket(const EmuOpcode op) : EQPacket(op, nullptr, 0), opcode_bypass(0)
 		{ app_opcode_size = GetExecutablePlatform() == ExePlatformUCS ? 1 : 2; }
-	EQApplicationPacket(const EmuOpcode op, const uint32 len) : EQPacket(op,nullptr,len)
+	EQApplicationPacket(const EmuOpcode op, const uint32 len) : EQPacket(op, nullptr, len), opcode_bypass(0)
 		{ app_opcode_size = GetExecutablePlatform() == ExePlatformUCS ? 1 : 2; }
-	EQApplicationPacket(const EmuOpcode op, const unsigned char *buf, const uint32 len) : EQPacket(op,buf,len)
+	EQApplicationPacket(const EmuOpcode op, const unsigned char *buf, const uint32 len) : EQPacket(op, buf, len), opcode_bypass(0)
 		{ app_opcode_size = GetExecutablePlatform() == ExePlatformUCS ? 1 : 2; }
 	bool combine(const EQApplicationPacket *rhs);
 	uint32 serialize (uint16 opcode, unsigned char *dest) const;
@@ -119,12 +118,16 @@ public:
 	virtual void DumpRawHeader(uint16 seq=0xffff, FILE *to = stdout) const;
 	virtual void DumpRawHeaderNoTime(uint16 seq=0xffff, FILE *to = stdout) const;
 
+	uint16 GetOpcodeBypass() { return opcode_bypass; }
+	void SetOpcodeBypass(uint16 v) { opcode_bypass = v; }
+
 protected:
 
 	uint8 app_opcode_size;
+	uint16 opcode_bypass;
 private:
 
-	EQApplicationPacket(const EQApplicationPacket &p) : EQPacket(p.emu_opcode, p.pBuffer, p.size) { app_opcode_size = p.app_opcode_size; }
+	EQApplicationPacket(const EQApplicationPacket &p) : EQPacket(p.emu_opcode, p.pBuffer, p.size), opcode_bypass(p.opcode_bypass) { app_opcode_size = p.app_opcode_size; }
 
 };
 

common/eq_stream.cpp

@@ -532,9 +532,12 @@ void EQStream::FastQueuePacket(EQApplicationPacket **p, bool ack_req)
 		return;
 	}
 
-	uint16 opcode = (*OpMgr)->EmuToEQ(pack->emu_opcode);
+	uint16 opcode = 0;
-
+	if(pack->GetOpcodeBypass() != 0) {
-	//_log(NET__APP_TRACE, "Queueing %sacked packet with opcode 0x%x (%s) and length %d", ack_req?"":"non-", opcode, OpcodeManager::EmuToName(pack->emu_opcode), pack->size);
+		opcode = pack->GetOpcodeBypass();
+	} else {
+		opcode = (*OpMgr)->EmuToEQ(pack->emu_opcode);
+	}
 
 	if (!ack_req) {
 		NonSequencedPush(new EQProtocolPacket(opcode, pack->pBuffer, pack->size));
@@ -877,43 +880,6 @@ sockaddr_in address;
 	AddBytesSent(length);
 }
 
-/*
-commented out since im not sure theres a lot of merit in it.
-Really it was bitterness towards allocating a 2k buffer on the stack each call.
-Im sure the thought was client side, but even then, they will
-likely need a whole thread to call this method, in which case, they should
-supply the buffer so we dont re-allocate it each time.
-EQProtocolPacket *EQStream::Read(int eq_fd, sockaddr_in *from)
-{
-int socklen;
-int length=0;
-EQProtocolPacket *p=nullptr;
-char temp[15];
-
-	socklen=sizeof(sockaddr);
-#ifdef _WINDOWS
-	length=recvfrom(eq_fd, (char *)_tempBuffer, 2048, 0, (struct sockaddr*)from, (int *)&socklen);
-#else
-	length=recvfrom(eq_fd, _tempBuffer, 2048, 0, (struct sockaddr*)from, (socklen_t *)&socklen);
-#endif
-
-	if (length>=2) {
-		p=new EQProtocolPacket(_tempBuffer[1],&_tempBuffer[2],length-2);
-
-		uint32 ip=from->sin_addr.s_addr;
-		sprintf(temp,"%d.%d.%d.%d:%d",
-			*(unsigned char *)&ip,
-			*((unsigned char *)&ip+1),
-			*((unsigned char *)&ip+2),
-			*((unsigned char *)&ip+3),
-			ntohs(from->sin_port));
-		//std::cout << timestamp() << "Data from: " << temp << " OpCode 0x" << std::hex << std::setw(2) << std::setfill('0') << (int)p->opcode << std::dec << std::endl;
-		//dump_message(p->pBuffer,p->size,timestamp());
-
-	}
-	return p;
-}*/
-
 void EQStream::SendSessionResponse()
 {
 EQProtocolPacket *out=new EQProtocolPacket(OP_SessionResponse,nullptr,sizeof(SessionResponse));
@@ -1101,14 +1067,6 @@ EQProtocolPacket *p=nullptr;
 		SequencedQueue.clear();
 	}
 	MOutboundQueue.unlock();
-
-/*if(uint16(SequencedBase + SequencedQueue.size()) != NextOutSeq) {
-	_log(NET__ERROR, _L "Out-bound Invalid Sequenced queue: BS %d + SQ %d != NOS %d" __L, SequencedBase, SequencedQueue.size(), NextOutSeq);
-}
-if(NextSequencedSend > SequencedQueue.size()) {
-	_log(NET__ERROR, _L "Out-bound Next Send Sequence is beyond the end of the queue NSS %d > SQ %d" __L, NextSequencedSend, SequencedQueue.size());
-}*/
-	//NOTE: we prolly want to reset counters if we are stupposed to do anything after this.
 }
 
 void EQStream::PacketQueueClear()

common/struct_strategy.cpp

@@ -17,6 +17,11 @@ StructStrategy::StructStrategy() {
 }
 
 void StructStrategy::Encode(EQApplicationPacket **p, EQStream *dest, bool ack_req) const {
+	if((*p)->GetOpcodeBypass() != 0) {
+		PassEncoder(p, dest, ack_req);
+		return;
+	}
+
 	EmuOpcode op = (*p)->GetOpcode();
 	Encoder proc = encoders[op];
 	proc(p, dest, ack_req);

tests/CMakeLists.txt

@@ -8,6 +8,7 @@ SET(tests_sources
 
 SET(tests_headers
 	atobool_test.h
+	data_verification_test.h
 	fixed_memory_test.h
 	fixed_memory_variable_test.h
 	hextoi_32_64_test.h
@@ -20,6 +21,8 @@ ADD_EXECUTABLE(tests ${tests_sources} ${tests_headers})
 
 TARGET_LINK_LIBRARIES(tests common cppunit)
 
+INSTALL(TARGETS tests RUNTIME DESTINATION ${CMAKE_INSTALL_PREFIX})
+
 IF(MSVC)
 	SET_TARGET_PROPERTIES(tests PROPERTIES LINK_FLAGS_RELEASE "/OPT:REF /OPT:ICF")
 	TARGET_LINK_LIBRARIES(tests "Ws2_32.lib")

tests/data_verification_test.h

@@ -0,0 +1,94 @@
+/*	EQEMu: Everquest Server Emulator
+	Copyright (C) 2001-2014 EQEMu Development Team (http://eqemulator.net)
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; version 2 of the License.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY except by those people which sell it, which
+	are required to give you total support for your newly bought product;
+	without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+	A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License
+	along with this program; if not, write to the Free Software
+	Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+*/
+
+#ifndef __EQEMU_TESTS_DATA_VERIFICATION_H
+#define __EQEMU_TESTS_DATA_VERIFICATION_H
+
+#include "cppunit/cpptest.h"
+#include "../common/data_verification.h"
+
+class DataVerificationTest : public Test::Suite {
+	typedef void(DataVerificationTest::*TestFunction)(void);
+public:
+	DataVerificationTest() {
+		TEST_ADD(DataVerificationTest::Clamp);
+		TEST_ADD(DataVerificationTest::ClampUpper);
+		TEST_ADD(DataVerificationTest::ClampLower);
+	}
+
+	~DataVerificationTest() {
+	}
+
+	private:
+	void Clamp() {
+		float value_f = 500.0f;
+		int value_i = 500;
+		
+		float vf1 = EQEmu::Clamp(value_f, 0.0f, 1000.0f);
+		float vf2 = EQEmu::Clamp(value_f, 0.0f, 250.0f);
+		float vf3 = EQEmu::Clamp(value_f, 750.0f, 1000.0f);
+		
+		int vi1 = EQEmu::Clamp(value_i, 0, 1000);
+		int vi2 = EQEmu::Clamp(value_i, 0, 250);
+		int vi3 = EQEmu::Clamp(value_i, 750, 1000);
+		
+		TEST_ASSERT_EQUALS(vf1, 500.0f);
+		TEST_ASSERT_EQUALS(vf2, 250.0f);
+		TEST_ASSERT_EQUALS(vf3, 750.0f);
+		
+		TEST_ASSERT_EQUALS(vi1, 500);
+		TEST_ASSERT_EQUALS(vi2, 250);
+		TEST_ASSERT_EQUALS(vi3, 750);
+	}
+
+	void ClampUpper() {
+		float value_f = 500.0f;
+		int value_i = 500;
+
+		float vf1 = EQEmu::ClampUpper(value_f, 1000.0f);
+		float vf2 = EQEmu::ClampUpper(value_f, 250.0f);
+
+		int vi1 = EQEmu::ClampUpper(value_i, 1000);
+		int vi2 = EQEmu::ClampUpper(value_i, 250);
+
+		TEST_ASSERT_EQUALS(vf1, 500.0f);
+		TEST_ASSERT_EQUALS(vf2, 250.0f);
+
+		TEST_ASSERT_EQUALS(vi1, 500);
+		TEST_ASSERT_EQUALS(vi2, 250);
+	}
+
+	void ClampLower() {
+		float value_f = 500.0f;
+		int value_i = 500;
+
+		float vf1 = EQEmu::ClampLower(value_f, 0.0f);
+		float vf2 = EQEmu::ClampLower(value_f, 750.0f);
+
+		int vi1 = EQEmu::ClampLower(value_i, 0);
+		int vi2 = EQEmu::ClampLower(value_i, 750);
+
+		TEST_ASSERT_EQUALS(vf1, 500.0f);
+		TEST_ASSERT_EQUALS(vf2, 750.0f);
+
+		TEST_ASSERT_EQUALS(vi1, 500);
+		TEST_ASSERT_EQUALS(vi2, 750);
+	}
+};
+
+#endif

tests/main.cpp

@@ -27,6 +27,7 @@
 #include "atobool_test.h"
 #include "hextoi_32_64_test.h"
 #include "string_util_test.h"
+#include "data_verification_test.h"
 
 int main() {
 	try {
@@ -40,6 +41,7 @@ int main() {
 		tests.add(new atoboolTest());
 		tests.add(new hextoi_32_64_Test());
 		tests.add(new StringUtilTest());
+		tests.add(new DataVerificationTest());
 		tests.run(*output, true);
 	} catch(...) {
 		return -1;

tests/string_util_test.h

@@ -23,7 +23,7 @@
 #include "../common/string_util.h"
 
 class StringUtilTest : public Test::Suite {
-	typedef void(IPCMutexTest::*TestFunction)(void);
+	typedef void(StringUtilTest::*TestFunction)(void);
 public:
 	StringUtilTest() {
 		TEST_ADD(StringUtilTest::StringFormatTest);

zone/client.cpp

@@ -701,14 +701,10 @@ void Client::QueuePacket(const EQApplicationPacket* app, bool ack_req, CLIENT_CO
 }
 
 void Client::FastQueuePacket(EQApplicationPacket** app, bool ack_req, CLIENT_CONN_STATUS required_state) {
-
-	//std::cout << "Sending: 0x" << std::hex << std::setw(4) << std::setfill('0') << (*app)->GetOpcode() << std::dec << ", size=" << (*app)->size << std::endl;
-
 	// if the program doesnt care about the status or if the status isnt what we requested
 	if (required_state != CLIENT_CONNECTINGALL && client_state != required_state) {
 		// todo: save packets for later use
 		AddPacket(app, ack_req);
-//		LogFile->write(EQEMuLog::Normal, "Adding Packet to list (%d) (%d)", (*app)->GetOpcode(), (int)required_state);
 		return;
 	}
 	else {

zone/lua_packet.cpp

@@ -14,14 +14,31 @@ Lua_Packet::Lua_Packet(int opcode, int size) {
 	owned_ = true;
 }
 
+Lua_Packet::Lua_Packet(int opcode, int size, bool raw) {
+	if(raw) {
+		SetLuaPtrData(new EQApplicationPacket(OP_Unknown, size));
+		owned_ = true;
+	
+		EQApplicationPacket *self = reinterpret_cast<EQApplicationPacket*>(d_);
+		self->SetOpcodeBypass(opcode);
+	} else {
+		SetLuaPtrData(new EQApplicationPacket(static_cast<EmuOpcode>(opcode), size));
+		owned_ = true;
+	}
+}
+
 Lua_Packet& Lua_Packet::operator=(const Lua_Packet& o) {
 	if(o.owned_) {
 		owned_ = true;
 		EQApplicationPacket *app = reinterpret_cast<EQApplicationPacket*>(o.d_);
-		if(app)
+		if(app) {
 			d_ = new EQApplicationPacket(app->GetOpcode(), app->pBuffer, app->size);
-		else
+
+			EQApplicationPacket *self = reinterpret_cast<EQApplicationPacket*>(d_);
+			self->SetOpcodeBypass(app->GetOpcodeBypass());
+		} else {
 			d_ = nullptr;
+		}
 	} else {
 		owned_ = false;
 		d_ = o.d_;
@@ -33,10 +50,14 @@ Lua_Packet::Lua_Packet(const Lua_Packet& o) {
 	if(o.owned_) {
 		owned_ = true;
 		EQApplicationPacket *app = reinterpret_cast<EQApplicationPacket*>(o.d_);
-		if(app)
+		if(app) {
 			d_ = new EQApplicationPacket(app->GetOpcode(), app->pBuffer, app->size);
-		else
+
+			EQApplicationPacket *self = reinterpret_cast<EQApplicationPacket*>(d_);
+			self->SetOpcodeBypass(app->GetOpcodeBypass());
+		} else {
 			d_ = nullptr;
+		}
 	} else {
 		owned_ = false;
 		d_ = o.d_;
@@ -54,6 +75,16 @@ int Lua_Packet::GetOpcode() {
 }
 
 void Lua_Packet::SetOpcode(int op) {
+	Lua_Safe_Call_Void();
+	self->SetOpcodeBypass(static_cast<uint16>(op));
+}
+
+int Lua_Packet::GetRawOpcode() {
+	Lua_Safe_Call_Int();
+	return static_cast<int>(self->GetOpcodeBypass());
+}
+
+void Lua_Packet::SetRawOpcode(int op) {
 	Lua_Safe_Call_Void();
 	self->SetOpcode(static_cast<EmuOpcode>(op));
 }
@@ -244,11 +275,14 @@ luabind::scope lua_register_packet() {
 	return luabind::class_<Lua_Packet>("Packet")
 		.def(luabind::constructor<>())
 		.def(luabind::constructor<int,int>())
+		.def(luabind::constructor<int,int,bool>())
 		.property("null", &Lua_Packet::Null)
 		.property("valid", &Lua_Packet::Valid)
 		.def("GetSize", &Lua_Packet::GetSize)
 		.def("GetOpcode", &Lua_Packet::GetOpcode)
 		.def("SetOpcode", &Lua_Packet::SetOpcode)
+		.def("GetRawOpcode", &Lua_Packet::GetRawOpcode)
+		.def("SetRawOpcode", &Lua_Packet::SetRawOpcode)
 		.def("WriteInt8", &Lua_Packet::WriteInt8)
 		.def("WriteInt16", &Lua_Packet::WriteInt16)
 		.def("WriteInt32", &Lua_Packet::WriteInt32)
@@ -809,7 +843,10 @@ luabind::scope lua_register_packet_opcodes() {
 			luabind::value("MercenaryDismiss", static_cast<int>(OP_MercenaryDismiss)),
 			luabind::value("MercenaryTimerRequest", static_cast<int>(OP_MercenaryTimerRequest)),
 			luabind::value("OpenInventory", static_cast<int>(OP_OpenInventory)),
-			luabind::value("OpenContainer", static_cast<int>(OP_OpenContainer))
+			luabind::value("OpenContainer", static_cast<int>(OP_OpenContainer)),
+			luabind::value("Marquee", static_cast<int>(OP_Marquee)),
+			luabind::value("ClientTimeStamp", static_cast<int>(OP_ClientTimeStamp)),
+			luabind::value("GuildPromote", static_cast<int>(OP_GuildPromote))
 		];
 }
 

zone/lua_packet.h

@@ -21,6 +21,7 @@ public:
 	Lua_Packet() : Lua_Ptr(nullptr), owned_(false) { }
 	Lua_Packet(EQApplicationPacket *d) : Lua_Ptr(d), owned_(false) { }
 	Lua_Packet(int opcode, int size);
+	Lua_Packet(int opcode, int size, bool raw);
 	Lua_Packet& operator=(const Lua_Packet& o);
 	Lua_Packet(const Lua_Packet& o);
 	virtual ~Lua_Packet() { if(owned_) { EQApplicationPacket *ptr = GetLuaPtrData(); if(ptr) { delete ptr; } } }
@@ -28,6 +29,8 @@ public:
 	int GetSize();
 	int GetOpcode();
 	void SetOpcode(int op);
+	int GetRawOpcode();
+	void SetRawOpcode(int op);
 	void WriteInt8(int offset, int value);
 	void WriteInt16(int offset, int value);
 	void WriteInt32(int offset, int value);